A Dog Named 647 is a blending of an original coming-of-age adventure story with the value of friendship, the complications of a family, and the inherent strength and value of the human-animal bond. It is worth noting that, as a veterinarian, author Nancy Kay brings a special reality to the plight of puppy mills. Simply stated, A Dog Named 647 is especially and unreservedly recommended for elementary school, middle school, and community library collections and the personal reading lists for children ages 8-12 who have (or wish to have) a canine companion of their own. Midwest Book Review

Some books break your heart. Others ignite it. Dr. Nancy Kay’s middle-grade novel A Dog Named 647 manages to do both. Inspired by the hidden world of puppy mills, this story follows twelve-year-old Mia, who discovers an emaciated retriever identified only as 647. What begins as one girl’s encounter with a neglected dog quickly unfolds into a journey of courage, friendship, and activism.

Shining a Light on Puppy Mills

Through Mia’s eyes, readers are drawn into the grim reality of commercial breeding facilities — places where dogs are caged, mistreated, and stripped of their identities. Yet the novel isn’t only about cruelty; it’s about resilience. The suspenseful plot, filled with daring choices and tense moments, keeps young readers turning the pages while also teaching them how systemic neglect thrives when left unchallenged.

Friendship at the Core

While the dog named 647 is the catalyst for change, Mia’s bond with her best friend Cassie drives the story forward. Their teamwork — from quiet research to bold action — highlights how advocacy often succeeds when rooted in collaboration and trust. The book shows young people that they don’t have to act alone to make a difference.

Lessons Beyond the Story

What sets A Dog Named 647 apart is its emphasis on real-world change. Dr. Kay closes the novel with practical ways kids can get involved — from writing letters to leaders to organizing awareness events. The result is part story, part toolkit, and a gentle invitation for readers to turn compassion into action.

Why Read It

For youth, the novel provides both a gripping narrative and an empowering message: you have the ability to speak up for those without a voice. For adults, it offers insight into how awareness begins at the ground level, often sparked by the passion of young advocates.

At its heart, A Dog Named 647 is a story about empathy — for animals, for friends, and even for people who are caught in broken systems. It reminds us that while one act of kindness might not save the world, it can set change in motion. Ohio Animal Advocates

A Dog Named 647 is a powerful novel that tactfully exposes middle-grade readers to uncomfortable realities about puppy mills, antisemitism, and the courage needed to stand up for what is right. Mia is the perfect pre-teen protagonist, a hearty jumble of passion, empathy, enthusiasm, innocence, impetuousness, and growth. Her actions and eye-opening experiences will resonate with the hearts of impressionable young audiences, delivering timely messages in a novel that is engaging and enjoyable for all ages. The richly descriptive writing pulls readers into the scenes. There are elements of nail-biting drama, but also a pure love for dogs that jumps off the page. A smart balance of suspense, social issues, cultural diversity, and canine companionship, A Dog Named 647 is a stirring call to action wrapped in a tender coming-of-age tale. Indies Today

The author has skillfully woven together moments of humor, warmth, and suspense to create a wonderful story. A Dog Named 647 inspires empathy, celebrates the human-animal bond, and reminds us that small voices can spark big change. A shoutout to parents, teachers, and librarians—every child who reads this book will have a head start on making the world a better place. Dr. Marty Becker, America’s Veterinarian and founder of Fear Free Pets

My childhood self would have found our spunky protagonist, Mia, completely relatable. Reading this book as a young adult would have empowered my compassion and action for animals. I'm an animal advocate now but I suspect I would have started sooner had this wonderful book fallen into my lap then. What a great read! Authentic and full of heart. Jo-Anne McArthur, founder of We Animals

A Dog Named 647 is a beautiful, eye-opening story that invites kids to think deeply about compassion, courage, and the power of speaking up for animals. Dr. Nancy Kay has written something that not only entertains—it inspires a new generation to care more bravely. Kathy Freston, New York Times bestselling author

I’ll confess: I judge books by their covers. And if I’d seen A Dog Named 647 on a shelf, I would’ve snatched it up like a pup being handed a bone. But the real power is in the story. Our animal-loving protagonist faces many tough challenges. Through engaging characters, and the heroine’s strength and sense of humor, we embark on a journey of good over evil. The proactive solutions offered by the author make this an important book for kids, and an important book for adults to talk about. Melanie Sue Bowles, author and director of Proud Spirit Horse Sanctuary

Dr. Nancy Kay’s novel, A Dog Named 647 immediately captivated and engaged me. Although targeted toward a teen audience, this book is invitingly readable for readers of all ages. This fast-paced story provides an honest, realistic and hard-hitting look at the dark underbelly of puppy mills, and tackles a few other important issues as well. It receives my highest endorsement. Dr. Jon Geller, founder, The Street Dog Coalition

A Dog Named 647 pulled me in from the first page and never let go. It’s an excellent blend of suspense and soft landings, with just the right balance of heart and urgency. I was especially drawn to how the story shows friends learning to truly support each other while still advocating for their own needs. Mia’s journey is both emotional and empowering, and the way kids and adults come together to solve big problems felt authentic and inspiring. The compassion at the core of this story is undeniable. A Dog Named 647 is a moving reminder that the bond between people and animals can truly transform lives. Cindy Ojczyk, author of Mom Loves the Dogs More: A Memoir of Family Rescue

A dog would be the perfect companion Mia wants and needs. The road to finding that special dog is littered with lessons in empathy, friendship, and a duty to the greater good. The author skillfully weaves a theme of animal welfare through a rousing story of growing up. Any animal lover, or even a potential animal lover, will love this book. It is a welcome addition to my school library. Sarah Powell, educator and librarian